時系列データを使用したマルチボディシステムの安定性解析法の構築

抄録

This study focuses on a stabiltiy analysis for unstable phenomena such as parametric excitations and self-excited vibrations on multi-body systems. Due to a large number of DOFs and nonlinearlities, it is difficult to directly apply the general method of stability analysis to the multi-body systems. In this study, we utilize a method based on the Prony’s method that evaluates instability using time series data obtained from experiments and numerical simulations so that it can be applied to a wider range of systems such as those modeled by the multi-body systems. Specifically, this study aims to establish a highly versatile method for predicting unstable vibrations such as parametric vibrations and self-excited vibrations of multibody systems. The purpose of this study is to confirm the validity of stability analysis using the time series data obtained from the numerical simulation and to compare it with theoretical results.